Milltown is a town located in the New Jersey region of the United States. During the most recent census, Milltown had a population of 6,893. Milltown is the 255th most poplulated city in the New Jersey region, the 5,177th most populated city in the United States and the 25,636th most populated city in the world. Milltown is in the America/New York timezone which is 4 hours behind UTC. Milltown adjusts the hour with daylight savings time during the winter months.